An Adaptive V-Grid Algorithm for Diffuse Optical Tomography
نویسندگان
چکیده
Absmct-In this work, we investigate an adaptive multigrid background (BG). A least squares solution is formulated for approach to improve the computational efficiency and the wanthe 2D inverse problem and a conjugate gradient method is titatiVe of Dm mconstNction. The idea employed at the relaxation stage of the multigrid solver, The is based on locally refined grid structure for region of interest for the inverse reconstruction results are presented to compare the quantitative problem. A Fast Adaptive Composite (FAC) V-Grid algorithm is accuracy and computational advantages ofthe proposed V-grid employed to solve the inverse problem. Same problem is also algorithm over fixed-grid and FAC 2-Grid algorithms. solved using a fued fine grid and FAC %Grid acheme for a 2-level locallv refined erid. Our numerical studies demonstrate A Least squares w) solution is
منابع مشابه
An adaptive multigrid algorithm for region of interest diffuse optical tomography
Due to diffuse nature of light photons, Diffuse Optical Tomography (DOT) image reconstruction is a challenging 3D problem with a relatively large number of unknowns and limited measurements. AS a result, the computational complexity of the existing DOT image reconstruction algorithms remains prohibitive. In this work, we investigate an adaptive multigrid approach to improve the computational ef...
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